Challenge 190 Solutions (Raku)

2 files changed, 36 insertions, 0 deletions

diff --git a/challenge-190/mark-anderson/raku/ch-1.raku b/challenge-190/mark-anderson/raku/ch-1.raku
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index 0000000000..16b5ff297a
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+++ b/challenge-190/mark-anderson/raku/ch-1.raku
@@ -0,0 +1,12 @@
+#!/usr/bin/env raku
+use Test;
+
+ok  capital-detection("Perl");
+ok  capital-detection("TPF");
+nok capital-detection("PyThon");
+ok  capital-detection("raku");
+
+sub capital-detection($s)
+{
+    any($s eq $s.tclc, $s eq $s.lc, $s eq $s.uc)
+}
diff --git a/challenge-190/mark-anderson/raku/ch-2.raku b/challenge-190/mark-anderson/raku/ch-2.raku
new file mode 100644
index 0000000000..be1685915e
--- /dev/null
+++ b/challenge-190/mark-anderson/raku/ch-2.raku
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+#!/usr/bin/env raku
+use Test;
+
+is-deeply decode-counts(11),   < AA K >;
+is-deeply decode-counts(1115), < AAAE AAO AKE KAE KO >;
+is-deeply decode-counts(127),  < ABG LG >;
+
+# Not sure how to deal with zeros but this is what the program does.
+is-deeply decode-counts(1002001), < ABA ATA JBA JTA >;
+
+sub decode-counts($n)
+{
+    sub composition($_)
+    {
+        gather .fmt('%0' ~ $n.chars ~ 'b') ~~ m:g/(.)$0* <?{ take $/.pos - $/.from }>/
+    }
+
+    sort map
+    { 
+        my $c := $n.comb.rotor(composition($_))>>.join>>.Int;
+        next unless all($c) ~~ 1..26;
+        [~] $c.map({ chr($_+64) });
+    }, ^2**($n.chars-1) 
+}